Just curious to see if anyone has had experiences with histocytomas on their dogs. Addie has developed one ( started out small and grew to double size in a week and a half ( about the size of a pinky fingernail). I took her to the Dr I work for and she told me it looked like a histiocytoma and not to worry about it.. it will get worse before it goes away, but it will go away on its own. I know basal cell tumors look very similar but Addie's Dr didnt seem concerned enough to want to biopsy / aspirate it ( I trust her very well, I work with her every day) . She said histocytomas are common on young dogs ( addies just turning 1)

Addie doesnt seem bothered by it ( doesnt lick at it, scratch etc) but it just looks gross!, it bothers me rather than her .. I've heard pit bulls are prone to them ( shes half pitty). How quickly do they go away ( my Dr didnt tell me exactly) ? I've heard they ulcerate sometimes.. did you guys get antibiotics etc? How big do they typically grow? I could ask her at work, LOL but i'm curious to see if anyones delt with these..

JD had one that was about the size of a half dollar...we had it removed only because it seemed to bother him. You could leave it to go away on it's own, but if it's becoming a bother, or starting to become an open wound, i'd have it removed. We also aspirated it which just made it more inflamed, which is probably why he became bothered by it.

Our first, Amnesty, had one on her head. Not just anywhere but between her eye and her ear. It was so ugly!! We thought about taking it off but it did go away and without it she never would have gotten her nickname "KnotHead"Her thing lasted about 4 months and she had a few white hairs to prove the location.

Our Jasmine (#1) had one on the back of her back leg. It went away within 2 months.

Harlow had one. She messed with it a lot and we had to go through two rounds of antibiotics. The vet wanted to remove it but luckily it started to go away before we got to that point. I think she probably had it for two or three months before it was gone. Now she just has a little hairless scar on her leg. Much better than the oozy red thing it was before. (gross)

Rain has one that is on her nose where it connects to her lip. It has been there for a few years now and sadly is not going anywhere. It cannot be removed as it takes up too much of her lip. So we call it her ugly stepmother wart.

Thanks for the infromation My vet told me not to be worried about it, but its hard when its so ugly LOL/ She doesnt seem bothered by it, but its nasty looking. I'll wait it out enless she seems really bothered by it. Thanks!

Good to know. Its funny these things bother me more than I think it bothers her :-) It is just gross looking. The one on addie looks like a little cyst almost ( about fingernail size). It grew dramatically in the first week but has slowed down. Hopefully it will go away in a few months and wont ulcerate when we're on our honeymoon in a month anda half!